STUDY OF THE CAPABILITIES OF MOBILE PHONES WITH CAMERAS TO OBTAIN GEOMETRIC DATA

Abstract

Mobile phones with cameras enable us to take photos of any objects at any time. The question arises whether this new device of communication can play a role in obtaining geometric data and what accuracy demands can still be satisfied by this device. Our series of experiments essentially involve taking photos of a geometrically defined area and examining the degree of likelyhood of the photogrammetric solution to the known geometry. This study was extended to various cameras, the number of points with known co-ordinates, the number of shots, and the object distance which has a decisive impact on picture scale. Furthermore, we compared the accuracy values of the results yielded by the processing of images taken by mobile phones with cameras and by other cameras. Numerical results are disclosed in a tabular format and the conclusions to be drawn from the numbers are summarized.